In honour of his late mother, he established what would later become the MaccaNOW Foundation. Initially setting out to raise 140.6 dollars for every day his mother had lived (19,455), it became McCormack’s mission to raise and donate $2,735,373 over the duration of his career. (Read more about the MaccaNOW Foundation.) He would raise more than $750,000 in that first year.
After 12 years living in the USA, McCormack moved his family back to Australia.